-er a-a a-b a-i a-t aaa aab aae aaf aag aai aan aao aar aas aat aau ab- aba abb abe abf abg abi abn abo abr abs abt abu aea aeb aee aef aeg aei aen aeo aer aes aet aeu af- afa afb afe aff afg afi afn afo afr afs aft afu ag- aga agb age agf agg agi agn ago agr ags agt agu ai- aia aib aie aif aig aii ain aio air ais ait aiu an- ana anb ane anf ang ani ann ano anr ans ant anu aoa aob aoe aof aog aoi aon aoo aor aos aot aou ar- ara arb are arf arg ari arn aro arr ars art aru as- asa asb ase asf asg asi asn aso asr ass ast asu at- ata atb ate atf atg ati atn ato atr ats att atu au- aua aub aue auf aug aui aun auo aur aus aut b-u baa bab bae baf bag bai ban bao bar bas bat bau bba bbb bbe bbf bbg bbi bbn bbo bbr bbs bbt bbu be- bea beb bee bef beg bei ben beo ber bes bet beu bfa bfb bfe bff bfg bfi bfn bfo bfr bfs bft bfu bga bgb bge bgf bgg bgi bgn bgo bgr bgs bgt bgu bi- bia bib bie bif big bii bin bio bir bis bit biu bna bnb bne bnf bng bni bnn bno bnr bns bnt bnu boa bob boe bof bog boi bon boo bor bos bot bou bra brb bre brf brg bri brn bro brr brs brt bru bsa bsb bse bsf bsg bsi bsn bso bsr bss bst bsu bta btb bte btf btg bti btn bto btr bts btt btu bua bub bue buf bug bui bun buo bur bus but buu eaa eab eae eaf eag eai ean eao ear eas eat eau eba ebb ebe ebf ebg ebi ebn ebo ebr ebs ebt ebu eea eeb eee eef eeg een eeo eer ees eet ef- efa efb efe eff efg efi efo efr efs eft ega egb ege egf egg egi egn ego egr egs egt egu eia eib eie eif eig eii ein eio eir eis eit eiu en- ena enb ene enf eng eni enn eno enr ens ent enu eo- eoa eob eoe eof eog eoi eon eoo eor eos eot eou era erb ere erf erg eri ern ero err ers ert eru es- esa esb ese esf esg esi esn eso esr ess est esu eta etb ete etf etg eti etn eto etr ets ett etu eu- eua eub eue euf eug eui eun eur eus eut faa fab fae faf fag fai fan fao far fas fat fau fba fbb fbe fbf fbg fbi fbn fbo fbr fbs fbt fbu fea feb fee fef feg fei fen feo fer fes fet feu ffa ffe fff ffg ffi ffn ffo ffr ffs fft ffu fga fgb fge fgf fgg fgi fgn fgr fgs fgt fia fib fie fif fig fii fin fir fis fit fiu fna fnb fne fnf fng fni fnn fnr fns fnt fnu foa fob foe fof fog foi fon foo for fos fot fou fra frb fre frf frg fri frn fro frr frs frt fru fsa fsb fse fsf fsg fsi fsn fso fsr fss fst fsu fta ftb fte ftf ftg fti ftn fto ftr fts ftt ftu fua fub fue fuf fug fui fun fuo fur fus fut fuu gaa gab gae gaf gag gai gan gao gar gas gat gau gba gbe gbf gbg gbi gbn gbo gbr gbs gbt gbu ge- gea geb gee gef geg gei gen geo ger ges get geu gfa gfb gfe gff gfi gfo gfr gfs gft gga ggb ggg ggi ggn ggo ggr ggs ggt ggu gia gib gie gif gig gii gin gio gir gis git giu gna gnb gne gnf gni gnn gno gnr gns gnt gnu goa gob goe gof gog goi gon goo gor gos got gou gra grb gre grf grg gri grn gro grr grs grt gru gsa gsb gse gsf gsg gsi gsn gso gsr gss gst gsu gta gtb gte gtf gtg gti gtn gto gtr gts gtt gtu gu- gua gub gue guf gug gui gun guo gur gus gut guu i-f ia- iaa iab iae iaf iag iai ian iao iar ias iat iau iba ibb ibe ibf ibg ibi ibn ibo ibr ibs ibt ibu ie- iea iee ief ieg iei ien ier ies iet ifa ifb ife iff ifg ifi ifn ifo ifr ifs ift ifu iga igb ige igf igg igi ign igo igr igs igt igu iia iib iie iif iii iin iio iir iis iit iiu in- ina inb ine inf ing ini inn ino inr ins int inu io- ioa iob ioe iof iog ioi ion ioo ior ios iot iou ir- ira irb ire irf irg iri irn iro irr irs irt iru is- isa isb ise isf isg isi isn iso isr iss ist isu ita itb ite itf itg iti itn ito its itt itu iu- iua iub iue iug iui iur ius iut n-i naa nab nae naf nag nai nan nao nar nas nat nau nba nbb nbe nbf nbg nbi nbn nbo nbr nbs nbt nbu ne- nea neb nee nef neg nei nen neo ner nes net neu nfa nfb nfe nff nfi nfn nfo nfr nfs nft nfu nga ngb nge ngf ngg ngi ngn ngo ngs ngt ngu nia nib nie nif nig nii nin nio nir nis nit niu nna nnb nne nnf nng nni nnn nno nns nnt nnu no- noa nob noe nof nog noi non noo nor nos not nou nra nrb nre nrf nrg nri nrn nro nrr nrs nrt nru nsa nsb nse nsf nsg nsi nsn nso nsr nss nst nsu nta ntb nte ntf ntg nti ntn nto ntr nts ntt ntu